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		<h1>Đề thi học kỳ 2 môn Toán lớp 5 năm học 2019 - 2020 &#40;Đề 2&#41;</h1>
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			Đề thi học kỳ 2 môn Toán lớp 5 năm học 2019 - 2020, có đáp án kèm theo. Mời các bạn cùng tham khảo
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			<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Khoanh vào chữ cái trước câu trả lời đúng các câu: câu 1; câu 2; câu 3; câu 4; câu 5; câu 6; câu 7 và giải bài toán với các câu: câu 8; câu 9; câu 10.</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 1: (1 điểm) Giá trị của chữ số 9 trong số : 28,953 là:</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">A.</span></span></span><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_06/image-20200628195906-5.png" width="15" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">B.</span></span></span><img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_06/image-20200628195906-6.png" width="23" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14.0pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,&#039;serif&#039;">C. </span></span></span>&nbsp;<img alt="" height="35" src="https://sachgiai.com/uploads/news/2020_06/image-20200628195906-7.png" width="31" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">D. 9 đơn vị</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 2: (1 điểm) Kết quả của phép tính 212,6&nbsp; +&nbsp; 133,2 là:</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">A. 462,7;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">B. 345,8;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">C. 246,7&nbsp;&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">D. 4267</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 3: (1 điểm) Kết quả của phép tính 345,6 : 3 là:</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">A. 1,152&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">B. 11,52&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">C. 115,2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">D. 1152</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 4: (1 điểm) Viết thành tỉ số % của 0,88 là:</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">A. 8,8%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">B. 880%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">C. 0,88%&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">D. 88%.</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 5: (1 điểm) Đúng ghi Đ, sai ghi S</b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Tỉ số phần trăm của…… là</span></span></span>
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			<td style="border-bottom:1px solid black; width:143px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:13.0pt"><span style="line-height:150%">4 và 5 là 80%</span></span></span></span></span></td>
			<td style="border-bottom:1px solid black; width:44px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:none; width:193px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:144px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:13.0pt"><span style="line-height:150%">2 và 5 là 25%</span></span></span></span></span></td>
			<td style="border-bottom:1px solid black; width:33px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
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<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 6:(1 điểm)</b> Thể tích của hình hộp chữ nhật có chiều dài 2cm, chiều rộng 2,5cm, chiều cao 4cm là:</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">A. 30cm<sup>2</sup>;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">B. 20 cm<sup>3</sup>;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">C. 40 cm<sup>3</sup>;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">D. 40cm<sup>2</sup>.</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 7: (1 điểm)</b> Một ô tô chạy với vận tốc 45,2 km/giờ. Tính quãng đường chạy được của ô tô trong 3 giờ .</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 8: (1 điểm)</b> Một ô tô đi từ tỉnh A lúc 6 giờ và đến tỉnh B lúc 10 giờ 45 phút. Ô tô đi với vận tốc 46km/giờ và nghỉ dọc đường mất 30 phút. Tính độ dài quãng đường từ tỉnh A đến tỉnh B?</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;<u><em><strong>Giải:</strong></em></u></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 9: (1điểm)</b> Hai người đi bộ ngược chiều nhau từ hai địa điểm A và B cách nhau 20 km để gặp nhau. Vận tốc của người đi từ A là 4 km/giờ. Vận tốc của người đi từ B là 6 km/giờ.</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">a) Hỏi sau mấy giờ họ gặp nhau?</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">b) &nbsp;Khi gặp nhau người đi từ A cách B mấy ki-lô mét?</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:</u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 10: (1 điểm)&nbsp; </b>Một lớp học có 27 học sinh trai, số học sinh gái bằng&nbsp; số học sinh trai. Hỏi lớp học đó có bao nhiêu phần trăm học sinh trai, bao nhiêu phần trăm học sinh gái?</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:</u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..……………………………………………………………………………………..</span></span></span>

<div style="text-align: center;"><strong><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">---&nbsp; HẾT ---</span></span></span></strong></div>

<div style="text-align: center;"><strong><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">BIỂU ĐIỂM VÀ HƯỚNG DẪN CHẤM</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">BÀI KIỂM TRA ĐỊNH KÌ CUỐI NĂM</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">MÔN: TOÁN 5</span></span></span></strong></div>

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			<td style="border-width: 1px; border-style: solid; border-color: black; width: 90px; padding: 0cm 7px; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><span style="line-height:115%">Câu số</span></b></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: 1px solid black; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">1</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: 1px solid black; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">2</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: 1px solid black; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">3</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: 1px solid black; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">4</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: 1px solid black; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">6</span></span></span></span></td>
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			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: 1px solid black; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><span style="line-height:115%">Ý đúng</span></b></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">A</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">B</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">C</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">D</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">B</span></span></span></span></td>
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			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: 1px solid black; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><span style="line-height:115%">Số điểm</span></b></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">1 điểm</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">1 điểm</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">1 điểm</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">1 điểm</span></span></span></span></td>
			<td style="border-bottom: 1px solid black; width: 90px; padding: 0cm 7px; border-top: none; border-right: 1px solid black; border-left: none; text-align: center;" valign="top"><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="line-height:115%">&nbsp;1 điểm</span></span></span></span></td>
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<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">(Nếu trong một câu mà học sinh khoanh vào 2 đáp án trong đó có 1 đáp án đúng thì ghi câu đó ½ số điểm)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 5: (1 điểm) </b>Đúng ghi Đ, sai ghi S</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Tỉ số phần trăm của…… là</span></span></span>

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			<td style="border-bottom:1px solid black; width:143px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:13.0pt"><span style="line-height:150%">4 và 5 là 80%</span></span></span></span></span></td>
			<td style="border-bottom:1px solid black; width:44px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:13.0pt"><span style="line-height:150%">Đ</span></span></span></span></span></td>
			<td style="border-bottom:none; width:193px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:144px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:13.0pt"><span style="line-height:150%">2 và 5 là 25%</span></span></span></span></span></td>
			<td style="border-bottom:1px solid black; width:33px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:14pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><span style="font-size:13.0pt"><span style="line-height:150%">S</span></span></b></span></span></span></td>
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<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">( Nếu học sinh chọn được 1 phương án đúng thì ghi ½ số điểm )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 7: (1điểm)</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:&nbsp; </u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Quãng đường đi được của ô tô trong 3 giờ là:&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">45,2 x 3 = 135,6 ( km )&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đáp số: 135,6 km&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)&nbsp;&nbsp;&nbsp;</span></span></span><br />
<br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 8: ( 1điểm)</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:</u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thời gian ô tô đi từ tỉnh A đến tỉnh B là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">10 giờ 45 phút&nbsp; -&nbsp; 6 giờ&nbsp; =&nbsp; 4 giờ 45 phút</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thời gian ô tô chạy trên cả quãng đường là:&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">4 giờ 45 phút&nbsp; -&nbsp; 30 phút&nbsp; =&nbsp; 4 giờ 15 phút</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đổi 4 giờ 15 phút&nbsp; =&nbsp; 4,25 giờ</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ dài quãng đường từ tỉnh A đến tỉnh B là:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">46 x 4,25&nbsp; =&nbsp; 195,5(km)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đáp số: 195,5 km&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><strong><u><em>Hoặc:&nbsp;</em></u></strong> Thời gian ô tô chạy trên cả quãng đường là:&nbsp; (0,5 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">(10 giờ 45 phút – 6 giờ)&nbsp; -&nbsp; 30 phút&nbsp; =&nbsp; 4 giờ 15 phút</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đổi 4 giờ 15 phút&nbsp; =&nbsp; 4,25 giờ</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ dài quãng đường từ tỉnh A đến tỉnh B là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">48 x 4,25&nbsp; = &nbsp;204(km)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đáp số: 204 km&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (0,25 đ)</span></span></span><br />
<br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 9: ( 1 điểm)</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:</u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">a. Tổng vận tốc của người đi từ A và người đi từ B là:&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">4 + 6 =&nbsp; 10 ( km/ giờ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thời gian hai người gặp nhau là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">20 : 10 = 2 ( giờ )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Quãng đường đi được của người A sau 2 giờ là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">2 x 4 = 8 ( km )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Khi gặp nhau người A cách B số ki- lô- mét là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">20 – 8 = 12 ( km )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><u><em>Đáp số:</em></u>&nbsp; a) Hai người gặp nhau sau 2 giờ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Người A cách B 12 km</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Hoặc:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">a. Thời gian hai người gặp nhau là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,4 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">20 : ( 4 + 6 ) = 2 ( giờ )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">b. Khi gặp nhau người A cách B số ki- lô- mét là:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,4 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">20 – ( 2 x 4) = 12 ( km )</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đáp số:&nbsp; a) Hai người gặp nhau sau 2 giờ.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,2 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;b) Người đi từ A cách B 12 km</span></span></span><br />
<br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b>Câu 10: (1 điểm)</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Giải:</u></i></b></span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Số học sinh gái của lớp là:</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">27 x </span></span></span><img alt="" height="45" src="https://sachgiai.com/uploads/news/2020_06/image-20200628200102-8.png" width="10" /><span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><i><span style="font-family:&#039;Cambria Math&#039;,&#039;serif&#039;"></span></i>&nbsp;&nbsp; = 18 (học sinh)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Số học sinh cả lớp là:</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">27 + 18 = 45 (học sinh)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Tỉ số phần trăm học sinh trai và học sinh cả lớp là:</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">27 : 45 =&nbsp; 0,6&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">0,6 = 60%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">Tỉ số phần trăm học sinh gái và học sinh cả lớp là:</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">18 : 45&nbsp; = 0,4&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (0,25 đ)</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">0,4 = 40%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span></span><br />
<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><u>Đáp số:</u></i></b>&nbsp; HS trai : 60%&nbsp; ;&nbsp; HS gái: 40%</span></span></span><br />
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<span style="font-size:14pt"><span style="line-height:115%"><span style="font-family:&#039;Times New Roman&#039;,serif">** Học sinh có thể làm gộp hoặc giải bằng cách khác, cứ đúng kết quả là ghi điểm tối đa.</span></span></span><br />
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